Jen, Jen, Jen...
I have to warn you, I was on the same quest for high-calorie foods because I was dwindling away. Suddenly the weight started going the other way...and wouldn't stop

! I was around 4,000 calories per day for at least 6 months with no noticable gain. All that has changed, unfortunately or fortunately and I can't stand to eat the good low-fat, low-cal diet I did for many years. Give me a nice prime rib-eye on the grill or some smoked ribs or a nice Starbucks mocha latte with whipped cream and some cheesecake to go!!
I am glad you are doing so well, by the way!
Ed